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Table 4 Grain yield, head milled rice yield and 2AP content in brown rice of three fragrant rice varieties grown under different water and nitrogen treatments in late season of 2013

From: Nitrogen application and different water regimes at booting stage improved yield and 2-acetyl-1-pyrroline (2AP) formation in fragrant rice

Nitrogen Variety Water Grain yield (t ha− 1) Head milled rice yield (t ha− 1) 2AP content in brown rice (ug kg− 1 DW)
N1 Nongxiang 18 W1 5.98 3.47 113.92
W2 5.88 3.61 145.43
W3 5.56 3.44 101.83
Yungengyou14 W1 5.54 3.35 101.76
W2 5.51 3.42 112.92
W3 6.28 3.88 126.73
Basmati W1 5.91 3.66 115.21
W2 5.81 3.53 127.69
W3 6.04 3.71 102.26
Mean 5.83 b 3.56 b 116.42 c
N2 Nongxiang 18 W1 5.20 3.66 118.77
W2 5.67 4.03 105.57
W3 5.98 4.22 139.31
Yungengyou14 W1 5.83 4.14 155.92
W2 6.53 4.64 124.86
W3 6.77 4.81 148.69
Basmati W1 5.45 3.80 113.07
W2 5.55 3.83 128.36
W3 5.98 4.17 108.85
Mean 5.88 b 4.15 a 127.04 b
N3 Nongxiang 18 W1 6.07 3.91 156.09
W2 7.12 4.57 142.47
W3 6.74 4.46 179.48
Yungengyou14 W1 6.07 3.86 148.13
W2 7.42 4.85 149.13
W3 6.45 4.17 199.99
Basmati W1 5.48 3.42 128.51
W2 6.02 3.74 134.47
W3 6.18 4.10 150.43
Mean 6.39 a 4.12 a 154.30 a
ANOVA   Variety (V) b b b
Water (W) b b b
Nitrogen (N) a b b
V × W b b b
V × N b b b
W × N ns ns b
V × W × N ns ns b
  1. Within a column means followed by different letters are significantly different according to the LSD (0.05). N1, 0 kg N ha−1; N2, 30 kg N ha−1; N3, 60 kg N ha−1, W1,Well-watered; W2, soil water potential was −15 ± 5 kPa; W3, soil water potential was −25 ± 5 kPa; ns, not significant at the 0.05 probability level; aand b, significant at the 0.05 and 0.01 probability levels, respectively